Soil-pulverizing attachment for plows.



J. W. KAUFMANN & E. M. KRAMER.

SOIL PULVBBIZING ATTACHMENT FOR PLOWS.

APPLICATION FILED MAY 23,1908.

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J. .W. KAUFMANN & E. M. KRAMER.

SOIL PULVERIZING ATTACHMENT FOR PLOWS.

APPLIOATION FILED MAY 23,1908

Patented Dec. 22, 1908. 7

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JOHN W. KAUFMANN AND EMIL M. KRAMER, OF PAXTON, ILLINOIS.

SOIL-PULVERIZING- ATTACHMENT FOR FLOWS.

vented a new and useful Soil-Pulverizing Attachment for Plows, of whichthe following is a specification.

This invention has relation to soil pulverizing attachments for plowsand it consists in the novel construction and arrangement of its partsas hereinafter shown and described.

The object of the invention is to provide an attachment of the characterindicated which is adapted to be applied to the frame of a low and whichoperates upon a furrow or urrows immediately after they are turned bythe plows for the purpose of reducing the same before the moisturecontained in the soil has had a chance to evaporate by being exposed tothe air.

A further object of the invention is to provide an attachment of thecharacter named which is of special construction and which is supportedby a resilient arm having a helical section formed therein and which isadapted to hold the earth engaging members of the attachment in contactwith the soil at uniform pressure and avoid the use of coil springs ortheir equivalents. The attachment is provided with means for adjustingthe various parts and a lever mechanism for raising and lowering thesame, whereby the earth engaging elements may be elevated above thesurface of the soil when the implement to which the attachment isapplied is making turns or is being transported along a road from placeto place.

In the accompanying drawing :Figure 1 is a perspective view of agang-plow showing the pulverizing attachment applied thereto. Fig. 2 isan edge elevation of a lever mechanism used upon the attachment. Fig. 3is a side elevation of said lever mechanism. Fig. 4 is a side elevationof a rotary earth engaging member used upon the attachment. Fig. 5 is aside elevation of a bracket arm used upon the attachment for supportingthe earth engaging members. Fig. 6 is an edge elevation of said bracketarm showing parts thereof in section, and Fig. 7 is a side elevation ofa fender rib used upon the attachment.

The attachment consists of the shelf member 1 which is provided with aU-shaped clamp bolt 2 which is adapted to receive one Specification ofLetters Patent.

Application filed May 23, 1908.

Patented Dec. 22, 1908.

Seria1 No. 434,578.

of the side portions 3 of the frame of the plow to which the attachmentis applied. The shelf member 1 is provided at the upper side of itsouter end portion with a circular toothed rosette 4. The standard plate5 is angular in configuration and is provided at its lower end with atoothed rosette 6 which is adapted to engage the rosette 4 and is heldin fixed relation thereto by means of the bolt 7 which passestransversely through the rosettes of the standard and the shelf member.The upper and lower portions of the standard 5 are braced with relationto each other by the vertically disposed ribs 8. The upper end portionof the standard 5 is circular in configuration and is provided with theteeth 9. The lever 10 is fulcrumed upon the pin 11 which passestransversely through the upper portion of the standard 5. Said lever isprovided with a spring actuated pawl 12 which is adapted to engage theteeth 9 at the upper end of the said standard 5. The lower end of thelever 10 is provided with a semi-circular head 13 which is provided withgear teeth 14. The disk 15 is pivotally mounted upon the pin 16 whichalso passes transversely through the standard 5. The said disk isprovided at its periphery with the teeth 17 which mesh with the teeth 14of the lever 10. The disk 15 is provided at its lower portion with asleeve 18 which is opened at both ends and is provided at anintermediate point with a set screw 19. spring steel arm 20 is in theform of a rod and hes at one end in the sleeve 18 and is held adjustablytherein by means of the set screw 19. The helix 21 is formed in the rod20 at a point intermediate of the ends thereof. The said helix isupwardly disposed with relation to the end portions of the said arm. Theupper and lower clamp plates 22 are adjustab y mounted upon the rear endportion of the arm 20 and the upper end of the bracket 23 is attached tothe lower clamp plate 22 by means of the bolts 24. The said bracket 23is rearwardly curved or bowed and is provided at its lower end with abearing box 25. The sleeve 26 is located in the box 25 and projects atits end portions slightly beyond the ends of the said bearing box asillustrated in Fig. 6 of the drawing. The shaft passes through thesleeve 26 and the rotating earth engaging members 28 are mounted uponthe said shaft at regular intervals. The members 28 are held in properrelation to each other by means of the sleeves The 29 which bear againstthe hubs or center portions of the said earth engaging members. The bar30 is attached to the upper portion of the bracket 23 and lies parallelwith the shaft 27. The fender ribs 31 are attached at their upper endsto the bar 30 and bear at their lower ends against the sleeves 29. Thesaid fender ribs are located between the earth engaging member 28 andare rearwardly bowed at their intermediate portions and are adapted toprevent trash from accumulating upon the said earth engaging members asthey rotate when in contact with the soil.

The earth engaging member 28 consists of the hub plates 32 which arescalloped out at their peripheries as at 33 and which are provided withthe channel arms 34 which receive between them the butt ends of theblades 35. The said blades may be any desired configuration butpreferably of the shape as shown in Fig. 4 in which case they are longand narrow. The rivets 36 hold the hub plates together and also retainthe blades 35 in position between the channel arms 34 of the opposed hubplates.

From the foregoing description it is obvious that when the shelf member1 is attached to the side rail 3 of the frame of a plow or similarimplement that the standard may be adjusted upon the outer end portionof the said shelf member 1 and secured in such adj usted position bymeans of the bolt 7. Thus the arm 20 may be positioned in the line ofdraft of the implement or in a line parallel with such a line or thesaid arm 20 may be pitched at an angle to the line of draft. Bymanipulating the lever the disk may be swung so that the arm may beraised or lowered. The arm 20 may be raised to such an extent as to liftthe earth engaging members 28 above the surface of the ground or thesaid arm 20 may be elevated so that the pointed ends of the blades willenter to any desired depth in the surface of the soil. By reason of thefact that the arm 20 is resilient, it being made of spring steel, and byrea son of helix 21 formed in the said arm the earth engaging members 28will be held resiliently in contact with the soil and consequently theymay ride over obstructions such as stones or stumps. At the same timethe resiliency of the said arm 20 will hold the earth engaging membersin contact with the soil under a uniform tension and small coil springsare dispensed with for the purpose of resiliently holding the saidmembers against the soil. It is also obvious that as the earth engagingmembers 28 rotate upon or with the shaft 27 that the blades 35 willenter the soil and cleave the same. The said blades are of suchconfiguration as to avoid a tendency to spade the soil but simply cleaveinto the soil and reduce the clogs into fine pulverized material thuspreparing the ground for plantmg.

Having described our invention what we claim as new and desire to secureby Letters Patent is A plow attachment consisting of a resilient arm,adapted to carry earth-engaging members, means for attaching the arm tothe frame of a plow, said arm being provided, at an intermediate point,with a spiral portion, with relation to which the end portions aretangentially disposed.

In testimony that we claim the foregoing as our own, we have heretoaffixed our signatures in the presence of two witnesses.

JOHN W. KAUFMANN. EMIL M. KRAMER. Witnesses SUSIE I. STITEs, AMANDA V.Romania.

